More BIOS functions
[Bios Calls]

Defines
#define	DivMod   Mod
Functions
void	VBlankIntrDelay (u32 count)
	Wait for count frames.
int	DivSafe (int num, int den)
	Div/0-safe division.
int	Mod (int num, int den)
	Modulo: num % den.
u32	DivAbs (int num, int den)
	Absolute value of num / den.
int	DivArmMod (int den, int num)
	Modulo: num % den.
u32	DivArmAbs (int den, int num)
	Absolute value of num / den.
void	CpuFastFill (u32 wd, void *dst, u32 mode)
	A fast word fill.

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Function Documentation

void CpuFastFill	(	u32	wd,
		void *	dst,
		u32	mode
	)

A fast word fill.

While you can perform fills with CpuFastSet(), the fact that swi 12 requires a source address makes it awkward to use. This function is more like the traditional memset formulation.

Parameters:

	wd	Fill word.
	dst	Destination address.
	mode	Number of words to transfer

int DivSafe	(	int	num,
		int	den
	)

Div/0-safe division.

The standard Div hangs if den = 0. This version will return INT_MAX/MIN in that case, depending on the sign of num, or just num / den if den is not 0.

Parameters:

	num	Numerator.
	den	Denominator.

void VBlankIntrDelay

(

u32

count

)

Wait for count frames.

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